SEXUAL EPRODUCTION 

1-       Sexual reproduction increase

A) Heredity                B) Variation             C) Mutation            D) Population             E) Weight

 

2-   I-  Meiosis      II-  Division of zygote             III-  Budding

Which of the above cause genetic variety in living things ?

A)  I III        B) I II       C) I II III           D) II         E) I

 

3-       The single cell resulted from fertilization is called

a) Somatic cell    b) Sperm     c) Zygote   d) Gamet    e) Egg

 

4-Which statement is true concerning asexual and sexual reproduction?

a)Asexual reproduction involves one or more parents.

b)Asexual reproduction rarely results in identical offspring.

c)Sexual reproduction is predominant amongst the flatworm and starfish.

d)Two parents are usually involved in sexual reproduction

e)Sexual reproduction never involves only one parent.

 

 

5-In ferns, the followings are all characteristics of spores except:

a) they are haploid  

b) they are unicellular  

c)they are formed by mitosis 

d) they germinate and develop into a gametophyte

 

6-    1- Embryos  develop at different course

       2- Fertilization been in different places

       3- Meiosis  in the formation of gametes  

       4- The genes are dispersed in different ways

Which of the given above cause the difference of two brothers

A- 1, 2     B- 1 , 2 , 3          C- 2 , 3           D- 2 , 4          E- 3 , 4

 

 

7-Sexual reproduction increase.

A- Heredity          B- Variation            C- Mutation

            D- Weight          E- All of them

 

8-..  forms at the end of the fertilization ?

A- Somatic cell            B- Zygote           C- Gametes         

D- Sperm         E- All of them

 

9-Some living things can produce both sperm and egg. These type of living things are called

A- Male              B- Female              C- Hermaphrodite          D- All of them           E- None of them

 

10-Sexual reproductıon differs from asexual reproduction .Because in sexual reproduction..

A-     No reproductive cells 

B- There is one parent       

C- Large numbers of offspring are produced

D- There is a union of two sex cells  

E- All of them

 

 

 

 

 

 

 

 

 

11-Which of the following is not a type of sexual reproduction

A- Isogamy              B- Anisogamy           C- Heterogamy          D- Oogamy         E- Fertilization

 

12- Examine the reproductive strategies listed bellow

I.                   Fusion of male and female gametes 

II.                Self fertilization of hermaphrodites

III.             Cross fertilization between hermaphrodites

IV.               Formation of new individuals by budding

 In which of the following pairs is there least genetic variety ?

A) 1 and 2     B) 1and 4     C) 2 and 3       D) 2 and 4      E) 3 and 4 

 

 

13-

I.                   Embryonic development

II.                Meiotic cell division

III.             Gamete formation

IV.               Fertilization

  Which of the above occur in the reproductive organs of all vertebrate ?

A) 1 and 2        B) 1 and 3        C) 1 and 4        D) 2and 3     E) 2 and 4              

 

14- In which of the following reproduction strategies is the frequency of crossing over highest ?

A)      budding in yeast

B)      sporulation of plasmodium in human erythocytes

C)      sporulation in ferns

D)      development of eyes in potato tube

E)      development of runners in strawberries

 

15-Which statement about sexual reproduction is not true?

  1. two parents are needed
  2. the offspring will be genetically different from the parents
  3. meiosis is involved in the production of gametes
  4. genes are inherited from each parent
  5. the genes of the two parents are the same

 

16- 1.meiosis           2.division of zygote             3.budding

Which of the above cause genetic variety  in living things ?

  1. 2 and 3
  2. 1 and 2
  3. 1,2 and 3
  4. 2 only
  5. 1 only

17-The primary advantage of sexual over asexual reproduction is

A. improvement of chances of reproduction

B. involvement of two parents in the care of the young

C. making possible reproduction in all types of environments

D. introducing variations into the offspring

E. speeding up the reproductive process

 
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